You're at Duke, right? That's not a Top Ten school. In physics, according to US News and World Report, Duke is tied for 30th.

Now that you know this, did you suddenly know any less physics? This is why ranking is not nearly as important as people here seem to think it is.

On to your question, I doubt very much that this is out there. What would be the benefit to the school to spend the time collecting this information and making it public?

I was referring to Duke's undergraduate ranking, not its physics graduate ranking (not sure which would be more relevant here, since I am a physics undergraduate).

As for my question, the vast majority of undergraduate schools, I think, release information such as the middle 50% range for SAT scores... I'm not interested in playing the guess the motive game. But a no is a no, I guess (and I can't find it myself).

What would be the benefit to the school to spend the time collecting this information and making it public?

Grad schools have this data, as it's in the applications and they know who they accepted. Some schools give a ballpark figure in their admissions FAQs, but I'd take it with a grain of salt. I'd agree though that the incentive to make it public is low, 'specially 'cause of the funky politics involved with grad school apps.

Also, does the fact that I go to a top ten school make much of a difference?

Not that much. I wouldn't worry too much about the GPA, there isn't really anything you can do about it now - and no matter how high your GPA was, at grad school level there will always be lots of other people with the same thing too.

What you need to do is try to make your application stand out in other ways, there are many threads on this forum about applying to grad school with lots of tips - though not all of them are applicable to you at this stage it will give you an idea of what to include in applications.